Home / 16,779.60-25,169.40-15,109.20

Finding the Fourth Proportional to 16,779.60, 25,169.40 and 15,109.20

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Solution

The fourth proportional to 16,779.60, 25,169.40 and 15,109.20 is: 22,663.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,779.60 : 25,169.40 = 15,109.20 : x
  2. Step 2: Convert to fraction form
    16,779.60/25,169.40 = 15,109.20/x
  3. Step 3: Cross multiply
    16,779.60x = 25,169.40 × 15,109.20
  4. Step 4: Simplify right side
    16,779.60x = 380,289,498.48
  5. Step 5: Solve for x
    x = 380,289,498.48/16,779.60
  6. Step 6: Final answer
    x = 22,663.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.